paho mqtt c++库 交叉编译

1、gcc编译

1、官网地址
https://github.com/eclipse/paho.mqtt.cpp

2、编译
$ sudo apt-get install build-essential gcc make cmake cmake-gui cmake-curses-gui

$ sudo apt-get install libssl-dev 

$ sudo apt-get install doxygen graphviz

$ git clone https://github.com/eclipse/paho.mqtt.cpp
$ cd paho.mqtt.cpp

$ cmake -Bbuild -H. -DPAHO_BUILD_STATIC=ON \
    -DPAHO_BUILD_DOCUMENTATION=TRUE -DPAHO_BUILD_SAMPLES=TRUE
$ sudo cmake --build build/ --target install
$ sudo ldconfig

2、aarch64编译

# 设置环境变量依赖库路径
export CMAKE_LIBRARY_PATH=/root/test-2023-05-08/terminal_bak/lib_new:$CMAKE_LIBRARY_PATH

vi CMakeLists.txt
# 添加以下内容
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_PROCESSOR aarch64)
set(tools /root/t507/sdk_v2/V2.0/out/gcc-linaro-7.4.1-2019.02-x86_64_aarch64-linux-gnu)
set(CMAKE_C_COMPILER ${tools}/bin/aarch64-linux-gnu-gcc)
set(CMAKE_CXX_COMPILER ${tools}/bin/aarch64-linux-gnu-g++)
set(ROOT_DIR /root/test-2023-05-08/terminal_bak/lib_new)


mkdir build
cd build

cmake ..
make
make install